Mods: 4.5mm needles for body and sleeves, 4mm for collar and front band ribbing. I’ve cast on for the 37” size, but knitted the yoke to the 33”/S size stitch count as my row gauge is a bit off. I’ve knitted the body to 18.5cm (rather than 14cm) before starting the cabling; and the sleeves are also longer before starting the cabling and at the cuffs. For the button bands, I’ve picked up 124sts each side and adjusted the buttonholes accordingly.

Geometric design buttons from Textile Garden.

28.1: some updated photos in (very slightly) better light!